New BlackBerry Offers
Wi-Fi, Network Access

Updated July 18, 2007 12:01 a.m. ET

Research In Motion Ltd. said it plans to launch a new BlackBerry smart phone that can access both Wi-Fi and cellular networks, joining a number of major handset makers starting to offer so-called dual-mode devices. The device, which will be available from AT&T Inc. this summer, resembles RIM's latest family of BlackBerry devices. RIM, of Waterloo, Ontario, has previously offered a Wi-Fi-only BlackBerry for employees to use while in range of office Wi-Fi connections. The company's dual-mode phone can transfer voice calls between Wi-Fi and cellular networks, potentially saving users money and extending access to...